Question about ASUS A8N-SLI Deluxe Motherboard

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No PS/2 keyboard response on boot.

I have an Asus A8N-SLI Deluxe system that I built that's been working flawlessly for over 2 years, and today (after routine summer cleaning), will not boot past splash screen. I tried clearing CMOS, however I can get as far as the big Asus AI splash screen where you can press 'del' to enter bios, and I get no response from keyboard. I checked all cables connection and connections, but can find no problems. I don't have a USB keyboard to try, but don't know if that would work before entering OS anyway. Any ideas would help.

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  • painterh Jul 17, 2009

    For clarification, I installed 2 additional sticks of RAM (matched pair same brand, model, speed and timing) so all slots were filled with 512 meg modules. Then I booted up and it ran great for several days. Then I noticed (Using Everest home edition), that only 2 of the modules were showing the correct timings that I had set up in the bios. So while I had it shut down for maintenance, I reset the CMOS to see if that would allow all 4 sticks to to share the same timing. After checking everything (as stated in original post, I restarted and no keyboard response. So now I cant even get into the bios to re-configure settings, and it wont boot past the LOGO screen. I tried using my wife's PS/2 keyboard, but same result. I hope this info helps

  • painterh Jul 17, 2009

    If I inadvertently had the PS/2 mouse and keyboard switched during boot, could that cause this kind of problem?

  • Fabio May 11, 2010

    Try without any devices connected to the motherboard ,only keep memory ,cpu and motherboard and see if it goes past the logo.

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Try a different keyboard and then try a different mouse. Try unhooking the hard drive and see if it goes past the logo, if it still doesn't then go ahead and disonnect the keyboard and mouse and see if it goes past the logo screen. If it doens't go past the logo then take the memory and cpu out and blow so air onto it to make sure specs of dirt or dust are no affectng it.

you can also try different memory as well to see if it stops locking up. Otherwise if you go thru these steps and you still have the lockups, its not going to be the keyboard are mouse causing the problems, its the motheboard.

You can try a usb keyboard and it might work but that would mean you have a bad ps2 port on the motherboard and as long as that doesn't bother you then the computet will be fine.




Posted on Jul 17, 2009

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